Use repo's screenshots rather than remote's (#694)

Co-authored-by: Alex Li <github@alexv525.com>

Author: guspan-tanadi

README-ZH.md

@@ -132,11 +132,11 @@ Language: [English](README.md) | 中文
 
 ## 截图 📸
 
-| ![1](screenshots/README_1.webp)                          | ![2](screenshots/README_2.webp)                          | ![3](screenshots/README_3.webp)                          |
-|----------------------------------------------------------|----------------------------------------------------------|----------------------------------------------------------|
-| ![4](screenshots/README_4.webp)                          | ![5](screenshots/README_5.webp)                          | ![6](screenshots/README_6.webp)                          |
-| ![7](screenshots/README_7.webp)                          | ![8](screenshots/README_8.webp)                          | ![9](screenshots/README_9.webp)                          |
-| ![10](https://pic.alexv525.com/2021-07-05-picker_10.png) | ![10](https://pic.alexv525.com/2021-07-05-picker_11.png) | ![12](https://pic.alexv525.com/2021-07-05-picker_12.png) |
+| ![1](screenshots/README_1.webp)   | ![2](screenshots/README_2.webp)   | ![3](screenshots/README_3.webp)   |
+|-----------------------------------|-----------------------------------|-----------------------------------|
+| ![4](screenshots/README_4.webp)   | ![5](screenshots/README_5.webp)   | ![6](screenshots/README_6.webp)   |
+| ![7](screenshots/README_7.webp)   | ![8](screenshots/README_8.webp)   | ![9](screenshots/README_9.webp)   |
+| ![10](screenshots/README_10.webp) | ![11](screenshots/README_11.webp) | ![12](screenshots/README_12.webp) |
 
 ## 开始前的注意事项 ‼️
 

README.md

@@ -136,11 +136,11 @@ submit issues to our issue tracker first.
 
 ## Screenshots 📸
 
-| ![1](screenshots/README_1.webp)                          | ![2](screenshots/README_2.webp)                          | ![3](screenshots/README_3.webp)                          |
-|----------------------------------------------------------|----------------------------------------------------------|----------------------------------------------------------|
-| ![4](screenshots/README_4.webp)                          | ![5](screenshots/README_5.webp)                          | ![6](screenshots/README_6.webp)                          |
-| ![7](screenshots/README_7.webp)                          | ![8](screenshots/README_8.webp)                          | ![9](screenshots/README_9.webp)                          |
-| ![10](https://pic.alexv525.com/2021-07-05-picker_10.png) | ![10](https://pic.alexv525.com/2021-07-05-picker_11.png) | ![12](https://pic.alexv525.com/2021-07-05-picker_12.png) |
+| ![1](screenshots/README_1.webp)   | ![2](screenshots/README_2.webp)   | ![3](screenshots/README_3.webp)   |
+|-----------------------------------|-----------------------------------|-----------------------------------|
+| ![4](screenshots/README_4.webp)   | ![5](screenshots/README_5.webp)   | ![6](screenshots/README_6.webp)   |
+| ![7](screenshots/README_7.webp)   | ![8](screenshots/README_8.webp)   | ![9](screenshots/README_9.webp)   |
+| ![10](screenshots/README_10.webp) | ![11](screenshots/README_11.webp) | ![12](screenshots/README_12.webp) |
 
 ## READ THIS FIRST ‼️